Though scaly, pangolins are actually mammals and they are the most-trafficked mammal in the world, according to the World Wildlife Foundation. They're high in demand for their meat and their scales, with more than one million pangolins being illegally taken from the wild to be used in fashion and medicine.

The doodle features incredibly cute pink and purple love-struck pangolins writing and reading love letters. When clicked, the doodle opens up to an interactive video game, where you use your keyboard to steer the bouncing animal.

According to CNET, the doodle is one of the most in-depth doodle ever and took the team of six animators and engineers about a year to create.

"If they're endangered, they really have to meet," Helene Leroux, the head artist for the Doodle, said during an interview with CNET. "So it was a perfect theme for Valentine's Day."

There are eight species of pangolin: four in Asia and four in Africa. Over 80% of the pangolin population has been wiped out in Asia by poachers. Two of the eight species are critically endangered.

In 2016, a treaty of over 180 governments announced an agreement that would end all legal trade of the endangered animal to further protect from extinction. However, illegal trade still happens.

WWF is leading the charge to protect the mammal by using thermal imagery to track poachers within pangolin habitats, which was made possible by a grant from Google.org.

You can help protect the pangolins by donating or purchasing pangolin themed merchandise here.